444553502144431 has 2 divisors, whose sum is σ = 444553502144432. Its totient is φ = 444553502144430.

The previous prime is 444553502144393. The next prime is 444553502144471. The reversal of 444553502144431 is 134441205355444.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444553502144431 is a prime.

It is a super-2 number, since 2×444553502144431² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444553502144471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222276751072215 + 222276751072216.

It is an arithmetic number, because the mean of its divisors is an integer number (222276751072216).

Almost surely, 2^{444553502144431} is an apocalyptic number.

444553502144431 is a deficient number, since it is larger than the sum of its proper divisors (1).

444553502144431 is an equidigital number, since it uses as much as digits as its factorization.

444553502144431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216000, while the sum is 49.

Adding to 444553502144431 its reverse (134441205355444), we get a palindrome (578994707499875).

The spelling of 444553502144431 in words is "four hundred forty-four trillion, five hundred fifty-three billion, five hundred two million, one hundred forty-four thousand, four hundred thirty-one".